.dropdown {
  max-height: 250px;
  overflow: auto;
}
.dropdown::-webkit-scrollbar {
  width: 4px;
  border-radius: 4px;
}
.dropdown::-webkit-scrollbar-track {
  background-color: #ccc;
  border-radius: 4px;
}
.dropdown::-webkit-scrollbar-thumb {
  background-color: #999;
  border-radius: 4px;
}
.dropdown::-webkit-scrollbar-thumb:hover {
  background-color: #aaa;
}
.dropdown::-webkit-scrollbar-thumb:active {
  background-color: #aaa;
}
.filter-input {
  margin: -5px -5px 5px;
  display: block;
  width: auto;
}
.tree-input {
  position: relative;
  width: 100%;
  height: 32px;
  line-height: 31px;
  padding: 0 5px;
  border-radius: 4px;
  border: 1px solid #d8dce5;
  background-color: #fff;
  color: #2d2f33;
}
.tree-input .wrap {
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  margin-right: 20px;
}
.tree-input .wrap::-webkit-scrollbar {
  width: 4px;
  height: 4px;
  border-radius: 4px;
  cursor: pointer;
}
.tree-input .wrap::-webkit-scrollbar-track {
  background-color: #ccc;
  border-radius: 4px;
  cursor: pointer;
}
.tree-input .wrap::-webkit-scrollbar-thumb {
  background-color: #999;
  border-radius: 4px;
  cursor: pointer;
}
.tree-input .wrap::-webkit-scrollbar-thumb:hover {
  background-color: #aaa;
  cursor: pointer;
}
.tree-input .wrap::-webkit-scrollbar-thumb:active {
  background-color: #aaa;
  cursor: pointer;
}
.tree-input .icon {
  position: absolute;
  top: 0;
  right: 0;
  width: 20px;
}
.tree-input .icon i {
  transition: .3s transform;
}
.tree-input .placeholder {
  border: 0;
  width: 100%;
}
.tree-input:hover {
  border-color: #b4bccc;
}
.tree-input.show {
  border-color: #409EFF;
}
.tree-input.show .icon i {
  transform: rotate(180deg);
}
.tree-input .el-tag:nth-of-type(n+2) {
  margin-left: 5px;
}
